apologetics

Greek: apologia, apology, defense

The theological science which aims at explaining and justifying religious doctrine in order to show its reasonableness in answer to objections of those who deny the reasonableness of any religion, especially of a revealed religion, such as Christianity, and more particularly the reasonable grounds of the Catholic religion. Since the name of apologetics has not the same significance in English as the Greek word from which it is derived, theologians today prefer to call the science fundamental theology, which explains the grounds of religion, revelation, Christianity, and Catholicity.